Home
Class 12
MATHS
A functions is defined for all positive ...

A functions is defined for all positive numbers x as `f(x) = asqrt(x) + b`. What is the value of `f(3)`. If `f(4) - f(1) = 2 and f(4) + f(1) = 10` ?

A

`1`

B

`2`

C

`2sqrt(3)`

D

`2sqrt(3) + 2`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

f (x) =ax ^(2)+3x+5 The function f is defined above, and f (3) =-4. If a is a constant, what is the value of f (2) ?

A function is defined as f(x)=x^2-3xdot Find the value of f(2)dot Find the value of x for which f(x)=4.

Let f : W-> W be a given function satisfying f(x) = f(x-1)+f(x-2) for x<=2 .If f(0)=0 and f(1)=1 , ther find the value of f(2) + f(3) + f(4) + f(5) + f(6) .

If f(x)=cos(logx), then value of f(x) f(4)-1/2{f(x/4)+f(4x)} is (a) 1 (b) -1 (c) 0 (d) +- 1

If f'(x) = 1/x + x^2 and f(1)=4/3 then find the value of f(x)

If function f:NtoN is defined by f(x)=2x+3 , for all x inN then f is

The function f is defined as f(x) = -4x^(3) - 4x^(2) . What is f(-4) ?

A function f :Rto R is defined as f (x) =3x ^(2) +1. then f ^(-1)(x) is :

A function f :Rto R is defined as f (x) =3x ^(2) +1. then f ^(-1)(x) is :

Function f is defined by f(x)=2x+1 . If 2f(m)=30 , what is the value of f(2m) ?